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Finding the Fourth Proportional to 148,751.44, 204,018.42 and 131,955.28

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Solution

The fourth proportional to 148,751.44, 204,018.42 and 131,955.28 is: 180,981.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,751.44 : 204,018.42 = 131,955.28 : x
  2. Step 2: Convert to fraction form
    148,751.44/204,018.42 = 131,955.28/x
  3. Step 3: Cross multiply
    148,751.44x = 204,018.42 × 131,955.28
  4. Step 4: Simplify right side
    148,751.44x = 26,921,307,736.26
  5. Step 5: Solve for x
    x = 26,921,307,736.26/148,751.44
  6. Step 6: Final answer
    x = 180,981.83

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.